Ethernet RJ45
Hardware¶
This is the standard RJ45 pinout for Ethernet MDI Jack. To make it easier, Sparkfun offers a RJ45 Breakout Board. the following is for a specific magjack but for all straight through jacks see next section.
Example Bel Stewart MagJack SI-60002-F (no LEDs) and SI-50196-F (has LEDs)
| | | |
--||--||--||--||----- Socket mbed
/ 8 | 6 | 4 | 2 | /| 1 TD+
/ 7 5 3 1 / | 2 3.3V
/ / | 3 TD-
/ Bel Stewart / | 4 RD+
/ MagJack / | 5 3.3V
/ SI-60002-F / | 6 RD-
/___________________ / | 7 N.C.
| -------- | | 8 GND
| -- -- | |
| --- | ---- | /
|| /--/-/-/-/-/-/-|| / ___ ________
|| / 8 7 6 5 4 3 2|| / ________________ -/ \- ____ | ____ |
|| / / / / / / / / || / ,= ,++, /, , , , , ,\|, , ,| , , /, ,| , |, , ,_|
|| / / / / / / / / /|| / ============================================================
||/ ' ' ' ' ' ' ' ' || / | | | | | | | | | | | | | | | | | | | |
| ------------------- |/ | | | | | | | | | | | | | | | | | | | |
--------------------- ^ ^ ^ ^
Ethernet Socket Front mbed Board TD+TD-RD+RD-
Straight jacks (No Built-In Magnetics) MDI interface:
| | | |
--||--||--||--||----- Socket mbed
/ 8 | 6 | 4 | 2 | /| 1 TD+
/ 7 5 3 1 / | 2 TD-
/ / | 3 RD+
/ / | 4
/ / | 5
/ / | 6 RD-
/___________________ / | 7
| -------- | | 8
| -- -- | |
| --- | ---- | /
|| /--/-/-/-/-/-/-|| / ___ ________
|| / 8 7 6 5 4 3 2|| / ________________ -/ \- ____ | ____ |
|| / / / / / / / / || / ,= ,++, /, , , , , ,\|, , ,| , , /, ,| , |, , ,_|
|| / / / / / / / / /|| / ============================================================
||/ ' ' ' ' ' ' ' ' || / | | | | | | | | | | | | | | | | | | | |
| ------------------- |/ | | | | | | | | | | | | | | | | | | | |
--------------------- ^ ^ ^ ^
Ethernet Socket Front mbed Board TD+TD-RD+RD-
Please note that other brands and references might not match the above, as is the case with Han Run HY911103A
| | | |
--||--||--||--||----- Socket mbed
/ 8 | 6 | 4 | 2 | /| 1 TD+
/ 7 5 3 1 / | 2 TD-
/ / | 3 3.3V
/ Han Run / | 4 GND
/ MagJack / | 5 GND
/ HY911103A / | 6 3.3V
/____________________ / | 7 RD+
| -------- | | 8 RD-
| -- -- | |
| --- | ---- | /
|| /--/-/-/-/-/-/-|| / ___ ________
|| / 8 7 6 5 4 3 2|| / ________________ -/ \- ____ | ____ |
|| / / / / / / / / || / ,= ,++, /, , , , , ,\|, , ,| , , /, ,| , |, , ,_|
|| / / / / / / / / /|| / ============================================================
||/ ' ' ' ' ' ' ' ' || / | | | | | | | | | | | | | | | | | | | |
| ------------------- |/ | | | | | | | | | | | | | | | | | | | |
--------------------- ^ ^ ^ ^
Ethernet Socket Front mbed Board TD+TD-RD+RD-
Please note that other brands and references might not match the above, as is the case with Han Run HR911105A and ERNI 203198 (has LEDs)
| | | |
--||--||--||--||----- Socket mbed
/ 8 | 6 | 4 | 2 | /| 1 TD+
/ 7 5 3 1 / | 2 TD-
/ / | 3 RD+
/ Han Run / | 4 3.3V
/ MagJack / | 5 3.3V
/ HR911105A / | 6 RD-
/____________________ / | 7 N.C.
| -------- | | 8 GND
| -- -- | |
| --- | ---- | /
|| /--/-/-/-/-/-/-|| / ___ ________
|| / 8 7 6 5 4 3 2|| / ________________ -/ \- ____ | ____ |
|| / / / / / / / / || / ,= ,++, /, , , , , ,\|, , ,| , , /, ,| , |, , ,_|
|| / / / / / / / / /|| / ============================================================
||/ ' ' ' ' ' ' ' ' || / | | | | | | | | | | | | | | | | | | | |
| ------------------- |/ | | | | | | | | | | | | | | | | | | | |
--------------------- ^ ^ ^ ^
Ethernet Socket Front mbed Board TD+TD-RD+RD-
Please note that other brands and references might not match the above, as is the case with Sparkfun PRT-08534
| | | |
--||--||--||--||----- Socket mbed
/ 8 | 6 | 4 | 2 | /| 1 TD+
/ 7 5 3 1 / | 2 TD-
/ / | 3 3.3V
/ Sparkfun / | 4 N.C.
/ MagJack / | 5 N.C.
/ PRT-08534 / | 6 3.3V
/____________________ / | 7 RD+
| -------- | | 8 RD-
| -- -- | | NOTE: GND is done through the shield pins
| --- | ---- | /
|| /--/-/-/-/-/-/-|| / ___ ________
|| / 8 7 6 5 4 3 2|| / ________________ -/ \- ____ | ____ |
|| / / / / / / / / || / ,= ,++, /, , , , , ,\|, , ,| , , /, ,| , |, , ,_|
|| / / / / / / / / /|| / ============================================================
||/ ' ' ' ' ' ' ' ' || / | | | | | | | | | | | | | | | | | | | |
| ------------------- |/ | | | | | | | | | | | | | | | | | | | |
--------------------- ^ ^ ^ ^
Ethernet Socket Front mbed Board TD+TD-RD+RD-